CRecyclerDropTarget Class Reference

Inheritance diagram for CRecyclerDropTarget:

Collaboration diagram for CRecyclerDropTarget:

Classes
struct	DeleteThreadData

Public Member Functions
	CRecyclerDropTarget ()
STDMETHODIMP	DragEnter (IDataObject *pDataObject, DWORD dwKeyState, POINTL pt, DWORD *pdwEffect) override
STDMETHODIMP	DragOver (DWORD dwKeyState, POINTL pt, DWORD *pdwEffect) override
STDMETHODIMP	DragLeave () override
STDMETHODIMP	Drop (IDataObject *pDataObject, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect) override
Public Member Functions inherited from ATL::CComObjectRootEx< CComMultiThreadModelNoCS >
	~CComObjectRootEx ()
ULONG	InternalAddRef ()
ULONG	InternalRelease ()
void	Lock ()
void	Unlock ()
HRESULT	_AtlInitialConstruct ()
Public Member Functions inherited from ATL::CComObjectRootBase
	CComObjectRootBase ()
	~CComObjectRootBase ()
void	SetVoid (void *)
HRESULT	_AtlFinalConstruct ()
HRESULT	FinalConstruct ()
void	InternalFinalConstructAddRef ()
void	InternalFinalConstructRelease ()
void	FinalRelease ()
HRESULT	DragEnter ([in, unique] IDataObject *pDataObj, [in] DWORD grfKeyState, [in] POINTL pt, [in, out] DWORD *pdwEffect)
HRESULT	DragOver ([in] DWORD grfKeyState, [in] POINTL pt, [in, out] DWORD *pdwEffect)
HRESULT	DragLeave ()
HRESULT	Drop ([in, unique] IDataObject *pDataObj, [in] DWORD grfKeyState, [in] POINTL pt, [in, out] DWORD *pdwEffect)
Public Member Functions inherited from IUnknown
HRESULT	QueryInterface ([in] REFIID riid, [out, iid_is(riid)] void **ppvObject)
ULONG	AddRef ()
ULONG	Release ()

Static Private Member Functions
static HRESULT	_DoDeleteDataObject (IDataObject *pda, DWORD fMask)
static DWORD WINAPI	_DoDeleteThreadProc (LPVOID lpParameter)
static void	_DoDeleteAsync (IDataObject *pda, DWORD fMask)

Private Attributes
BOOL	fAcceptFmt
UINT	cfShellIDList

Additional Inherited Members
Public Types inherited from IDropTarget
typedef IDropTarget *	LPDROPTARGET
Public Types inherited from IUnknown
typedef IUnknown *	LPUNKNOWN
Static Public Member Functions inherited from ATL::CComObjectRootBase
static void WINAPI	ObjectMain (bool)
static const struct _ATL_CATMAP_ENTRY *	GetCategoryMap ()
static HRESULT WINAPI	InternalQueryInterface (void *pThis, const _ATL_INTMAP_ENTRY *pEntries, REFIID iid, void **ppvObject)
Public Attributes inherited from ATL::CComObjectRootBase
LONG	m_dwRef
Public Attributes inherited from IDropTarget
const DWORD	MK_ALT = 0x20
const DWORD	DROPEFFECT_NONE = 0
const DWORD	DROPEFFECT_COPY = 1
const DWORD	DROPEFFECT_MOVE = 2
const DWORD	DROPEFFECT_LINK = 4
const DWORD	DROPEFFECT_SCROLL = 0x80000000
const DWORD	DD_DEFSCROLLINSET = 11
const DWORD	DD_DEFSCROLLDELAY = 50
const DWORD	DD_DEFSCROLLINTERVAL = 50
const DWORD	DD_DEFDRAGDELAY = 200
const DWORD	DD_DEFDRAGMINDIST = 2

Detailed Description

Definition at line 27 of file CRecyclerDropTarget.cpp.

Constructor & Destructor Documentation

CRecyclerDropTarget()

CRecyclerDropTarget::CRecyclerDropTarget ( )

inline

Definition at line 105 of file CRecyclerDropTarget.cpp.

        {
            fAcceptFmt = FALSE;
            cfShellIDList = RegisterClipboardFormatW(CFSTR_SHELLIDLIST);
        }

Member Function Documentation

_DoDeleteAsync()

static void CRecyclerDropTarget::_DoDeleteAsync ( IDataObject *  pda, DWORD  fMask  )

inlinestaticprivate

Definition at line 96 of file CRecyclerDropTarget.cpp.

        {
            DeleteThreadData *data = static_cast<DeleteThreadData*>(HeapAlloc(GetProcessHeap(), 0, sizeof(DeleteThreadData)));
            data->fMask = fMask;
            CoMarshalInterThreadInterfaceInStream(IID_IDataObject, pda, &data->s);
            SHCreateThread(_DoDeleteThreadProc, data, NULL, NULL);
        }

Referenced by Drop().

_DoDeleteDataObject()

static HRESULT CRecyclerDropTarget::_DoDeleteDataObject ( IDataObject *  pda, DWORD  fMask  )

inlinestaticprivate

Definition at line 35 of file CRecyclerDropTarget.cpp.

        {
            HRESULT hr;
            STGMEDIUM medium;
            FORMATETC formatetc;
            InitFormatEtc (formatetc, CF_HDROP, TYMED_HGLOBAL);
            hr = pda->GetData(&formatetc, &medium);
            if (FAILED_UNEXPECTEDLY(hr))
                return hr;
 
            LPDROPFILES lpdf = (LPDROPFILES) GlobalLock(medium.hGlobal);
            if (!lpdf)
            {
                ERR("Error locking global\n");
                ReleaseStgMedium(&medium);
                return E_FAIL;
            }
 
            /* Delete them */
            SHFILEOPSTRUCTW FileOp;
            ZeroMemory(&FileOp, sizeof(FileOp));
            FileOp.wFunc = FO_DELETE;
            FileOp.pFrom = (LPWSTR) (((byte*) lpdf) + lpdf->pFiles);;
            if ((fMask & CMIC_MASK_SHIFT_DOWN) == 0)
                FileOp.fFlags = FOF_ALLOWUNDO;
            TRACE("Deleting file (just the first) = %s, allowundo: %d\n", debugstr_w(FileOp.pFrom), (FileOp.fFlags == FOF_ALLOWUNDO));
 
            int res = SHFileOperationW(&FileOp);
            if (res)
            {
                ERR("SHFileOperation failed with 0x%x\n", res);
                hr = E_FAIL;
            }
 
            GlobalUnlock(medium.hGlobal);
            ReleaseStgMedium(&medium);
 
            return hr;
        }

Referenced by _DoDeleteThreadProc().

_DoDeleteThreadProc()

static DWORD WINAPI CRecyclerDropTarget::_DoDeleteThreadProc ( LPVOID  lpParameter )

inlinestaticprivate

Definition at line 80 of file CRecyclerDropTarget.cpp.

        {
            DeleteThreadData *data = static_cast<DeleteThreadData*>(lpParameter);
            CoInitialize(NULL);
            IDataObject *pDataObject;
            HRESULT hr = CoGetInterfaceAndReleaseStream (data->s, IID_PPV_ARG(IDataObject, &pDataObject));
            if (SUCCEEDED(hr))
            {
                _DoDeleteDataObject(pDataObject, data->fMask);
            }
            pDataObject->Release();
            CoUninitialize();
            HeapFree(GetProcessHeap(), 0, data);
            return 0;
        }

Referenced by _DoDeleteAsync().

DragEnter()

STDMETHODIMP CRecyclerDropTarget::DragEnter ( IDataObject *  pDataObject, DWORD  dwKeyState, POINTL  pt, DWORD *  pdwEffect  )

inlineoverride

Implements IDropTarget.

Definition at line 112 of file CRecyclerDropTarget.cpp.

        {
            TRACE("Recycle bin drag over (%p)\n", this);
            /* The recycle bin accepts pretty much everything, and sets a CSIDL flag. */
            fAcceptFmt = TRUE;
 
            *pdwEffect = DROPEFFECT_MOVE;
            return S_OK;
        }

DragLeave()

STDMETHODIMP CRecyclerDropTarget::DragLeave ( )

inlineoverride

Implements IDropTarget.

Definition at line 136 of file CRecyclerDropTarget.cpp.

        {
            TRACE("(%p)\n", this);
 
            fAcceptFmt = FALSE;
 
            return S_OK;
        }

DragOver()

STDMETHODIMP CRecyclerDropTarget::DragOver ( DWORD  dwKeyState, POINTL  pt, DWORD *  pdwEffect  )

inlineoverride

Implements IDropTarget.

Definition at line 123 of file CRecyclerDropTarget.cpp.

        {
            TRACE("(%p)\n", this);
 
            if (!pdwEffect)
                return E_INVALIDARG;
 
            *pdwEffect = DROPEFFECT_MOVE;
 
            return S_OK;
        }

Drop()

STDMETHODIMP CRecyclerDropTarget::Drop ( IDataObject *  pDataObject, DWORD  grfKeyState, POINTL  pt, DWORD *  pdwEffect  )

inlineoverride

Implements IDropTarget.

Definition at line 146 of file CRecyclerDropTarget.cpp.

        {
            TRACE("(%p) object dropped on recycle bin, effect %u\n", this, *pdwEffect);
 
            FORMATETC fmt;
            TRACE("(%p)->(DataObject=%p)\n", this, pDataObject);
            InitFormatEtc (fmt, cfShellIDList, TYMED_HGLOBAL);
 
            /* Handle cfShellIDList Drop objects here, otherwise send the appropriate message to other software */
            if (SUCCEEDED(pDataObject->QueryGetData(&fmt)))
            {
                DWORD fMask = 0;
 
                if ((grfKeyState & MK_SHIFT) == MK_SHIFT)
                    fMask |= CMIC_MASK_SHIFT_DOWN;
 
                _DoDeleteAsync(pDataObject, fMask);
            }
            else
            {
                /*
                 * TODO call SetData on the data object with format CFSTR_TARGETCLSID
                 * set to the Recycle Bin's class identifier CLSID_RecycleBin.
                 */
            }
            return S_OK;
        }

Member Data Documentation

cfShellIDList

UINT CRecyclerDropTarget::cfShellIDList

private

Definition at line 33 of file CRecyclerDropTarget.cpp.

Referenced by CRecyclerDropTarget(), and Drop().

fAcceptFmt

BOOL CRecyclerDropTarget::fAcceptFmt

private

Definition at line 32 of file CRecyclerDropTarget.cpp.

Referenced by CRecyclerDropTarget(), DragEnter(), and DragLeave().

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The documentation for this class was generated from the following file:

• dll/win32/shell32/droptargets/CRecyclerDropTarget.cpp